Expansion joint



sept. 2, v193- C; PTEEQ Re. 17,792

EXFNS TON JOINT Original Filed June lLL, 1920 @im E TO'R .a/ZZU BY f"Reiu'uediseigz, V193e UNITED' "STATES PATENT oFFIci: o.

lCARI J'. PATEB-OF WYOMING, OHIO, ASSIG-NOR TO THE PHILIP CAREYMANUFACTUR- ING COMPANY, A. CORPORATION F OHIO EXPANSION JOINT Drig'inalNo. 1,665,718, dated A-pril 10, 1928, Serial No. 388,987-,i1ed June 14,192.6. Application for reissue vas ' med Aprn 10, 1930,

My invention relates to anexpansion joint formed in the factory andshipped'to the lace of application. It is yar'ticularly adr'essed toexpansion l joints or use in street paving, such as concrete, brick,Wood block and similar streets or highways or other places where itisdesirable to place at intervalsan expansion joint to compensate forthe contraction and expansion of the paving, due to variations intemperature. It'i's desirable that the material of which 'expansionjoints of this character are made should be of such` a nature that Whilepossessing the req`uisite characteristics to serve as an expansionjoint, it is capable of being moulded or otherwise formed to the desiredshape in the factory. These expansion joints must, when finished, beadapted to be readily handled andpacked without adherence' toeach other,

while at vthe same time being sufliciently board-like to permit of theirbeing installed in place or used as a portion or side of-the mould whena concrete pavement is being laid. In this Way my expansion jointsobviate the necessity of first placing the form or vmould in positionand then after the concrete is set,'r emoving the mould and placing thejoint in the space from which the mould was removed. They also obviatethe pouring of joints o n the job. Referring to t-he drawings annexedhereto and forming a part of this specification,

i Fig. 1 is 'a cross section of of my invention, and

` Figs. 2, 3 and 4 are1 respectively similarv vievs of threemodifications.

' In all forms of my invention shown, B -is themain body of the jointand A is the reinforcement or non-adhering surface. In carrying out myinvention I prefer to use a material plastic in its nature and possessedof the necessary Waterproofing and non-dete riorating characteristicssuch as asphalt, coal tar, candle tar, pine tar, or any other bituminousor suitable hydrocarbon material. This bituminous material may be eithera pure asphalt or a composition of' asphalts -or other bituminousmaterials or a combination of bituminous and other materials, In thepreferred form of my invention I take a one embodiment Serial No.443,101.

quantity of the bituminous material, preferably in excess of lifty percentby Weight,

and combine with it a filler of suitable material, such as asbestosfibre, iiax, pulverized coke,I lampfbl'ack, pulverized charcoal, clay, My

sand, Waste tan bark, grasses, cork, flax or other suitable material. Inmaking the mixture .I heat Vthe bituminous material until it issufficiently fluid .to permit of the ready mixing of vthe filler withit.4 .Then the mixture terial into which it is mixed so as to make itWaterproof and preserve it.. Somel materials could be used which are notcapable of being saturated but which have other qualities, suchaselasticity and iexibility, as in the instance of cork mentioned, andthese materials when coated With the bituminous material Will beprotected and will notdeteriorate or be af fected by the climatic orother conditionsI arising from the useo'f the joint. The joint made ofthis bituminous material containing the filler must be plastic but inorder to permit of its ready handling for shipping purposes and forapplication and use on the job,

"it is desirable that this plastic mass be provided With somereinforcement for the purpose of strengthening it. This reinforcementmay be a bituminous reinforcement made by using 'a bituminous materialwhich is of a harder consis'tencyor of less plasticity than the plasticmass' which it is to reinforce'. Such a reinforcementmay be obtained byusing an asphalt Which is harder than the mass to be reinforced orcombining an asphalt with some iller which will tend to make it harderand then applying this hard asphalt mixture to the surface o'f theplastic mass to the desired thickness, thereby giving body and strengthto the joint so that it will forma slab or board-like structure capableof being easily handled. A bituminous material could be utilized forthis purpose having a much higher melting point than the plastic massfirst referred to or one having a much lower y penetration than theplastic mass which it Vis to reinforce. This reinforcing material isapplied preferably on the exterior of the plastic mass, although if[desired it could'be made the core and the plastic mass applied to eachAside of it. Thethickness of ,this reinforcing material-depends upon the`thickness zio of the joint and the thickness of the plastic mass but itmust be of sufficient thickness so as to aHord the board-like orslab-like. characteristics to thefmal complete expansion joint.- Isometimes use in lace of the bituminous reinforcement a rein 'orcementof paper .or sometimes combine the paper rein*V forcement with thebituminous reinforcenient by placingthe paper on the exterior or betweenthe original plastic mass and the bituminous reinforcement, as shown inFigs. l3. and 1 Where C is the paper`reinforcement. .If desired anymaterial could be usedin this was desirable to give greater adhesionbetween the joint and adjacent structure, than would be afforded by thenatural characteristics of the joint itself. The surface of the jointcould, to further prevent adhesion of adjacent joints especially inextremely hot weather, have a layer or exterior coat or vdusting oftalc, soapstone, mica or any similar suitable minute particles adaptedto prevent the adhesion `of adjacent joints when packed,

etc. ...j-'What I claim:

vl.` An expansion joint formed of a body of bituminous material and abody of harder bituminous material than said rst mentioned body, forminga surface for said joint.

2. An expansion joint composed of a body' of bituminous materialand anexposed surface thereof formed of a body of bituizninous materialreinforcing said first mentioned body, said reinforcing body having apene,- tration less than the penetration ofsaid first mentioned body.

3.' An expansion joint formed of a plastic mass composed of a bituminousmaterial containing a filler and a layer of. bituminous materialreinforcing said plastic mass and forming a surface for said joint.

4. .A preformed expansion joint formed of a plastic mass composed ofbituminous material containing a fibrous filler and a layer ofbituminous material reinforcing said plasticl mass and forming a surfacefor said joint.

lied at the factoryV or on the job. The "adhesive lcoat would only beused where it 5. A preformed board-like expansion joint formed of aplastic mass composed of bituminous material containing a filler ofvegetable Y fiber. and a layer of bituminous material harder than saidplastic mass reinforcing said mass and forming a surface for said joint.

6. A preformed expansion joint a plastic mass composed of a bituminousVmaterial containing a filler of grassdike ber and a layer ofbituminous'material reinforcing said plasticmass and forming a surfacefor said joint. f s

7. A preformed'boardlike expansion joint formed of .a body of bituminousmaterial .and a body of harder lbituminous -materiai Vthansaidfirst-named body forminglasurface for said joint andin contact with saidfirstnamed body. Y y

8.A An expansion joint formed of a bb'dy of bituminous .material and abody of harder bituminous material than said first mentioned bodyforming-'a surface for said joint and a reinforcement said joint. j

j 9. An expansion joint formed of a body of bituminous material and abody of harder bituminous material than, said first mentioned body andarranged intermediate the'surfaces4 of said expansion joint.

10. An expansion joint formed of a body containing bituminous materialarranged in layers, one of said layers being of a harder bituminousmaterial than the adjacent layer and a reinforcement of sheet materialembedded in said body. i

ll. An expansion joint formed of abody containing bituminous` materialarranged in layers, one of said layers being of a harder bituminousmaterial than the adjacent layer anda reinforcement of fabric material4embedded in said body. l

l2. An expansion joint having abody con# tain-ing bituminous and fibrousmaterial, a portion of said body beingl composed of a bituminousmaterial harder than the bituminous material in the adjacentreinforcement embedded in said body.

in testimony whereof, I have signed my name to this specification.

- CARL J. PATEB of sheet material embedded in,

a reinforcement of sheet material j formed of portions and a

